Thank you about the information. I just read it but I haven't noticed many symptoms that they are talking about. She is 11 pounds but she's been between 10-12lbs always... she's one of the bigger yorkies I guess... But she's been eating normally, very very very energetic, no hair loss or anything like that. I guess it's hard to notice the symptoms but I am definitely going to call my vet and see if they can help my little baby